TETRA (terrestrial trunked radio) - technical features and application of professional communication technologies in mobile digital radio networks for special purpose services

Bakaric, S.; Borzic, M.; Bratkovic, D.; Grga, Vinko

doi:10.1109/elmar.2005.193705

Cited by 6 publications

(5 citation statements)

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“…In TEDS layered architecture (see Fig. 2), TENS has opted RTP/UDP/IP convention for video communication, where RTP performs packet/frame handling at application layer [11,27]. Prior to accessing a Mobile Station (MS) to any SNDCP service, it first goes through a packet data registration procedure called PDP context activation that is initiated by the MS. An optional Multimedia Exchange (MEX) layer resides above SNDCP and routes the data to the destination [3].…”

Section: Tens: a Simulation Framework For Tedsmentioning

confidence: 99%

An Investigation of Video Communication Over Bandwidth Limited Public Safety Network

Ahmad¹,

Shan²,

Khan

et al. 2018

MJCS

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Application performance of video-based services for public safety and security (PSS) systems is of high importance in order to protect citizens, organizations, and institutions against threats to their well-being. Video based services help PSS personnel to efficiently perform their rescue operations. Real-time video streaming of incident-based services over the PSS communication networks facilitates in realistic assessment of the situations and saves many precious lives. However, video communication over PSS networks, such as Terrestrial Trunked Radio (TETRA), is a big challenge due to the narrowband and the hostile environment. Thus, specialized codecs have been developed considering the constraints of the PSS networks. This paper presents performance comparisons of two video codecs, namely H.264/AVC and MPEG-4, over TEDS links. The significance of the results is evaluated using SPSS (t-test) to critically analyse the data. It is observed that video quality offered by H.264/AVC over TEDS links is better than the one offered by MPEG-4. Moreover, it is also noticed that TEDS bandwidth limitations substantially affect the quality of reconstructed video containing frequent changes of scenes. Based on the findings of our analyses, we propose a set of applications which are suitable for TEDS networks. The findings of this study would help the researchers to further explore the possibilities of video communication over TEDS links by optimizing the lower level network technologies.

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Section: Tens: a Simulation Framework For Tedsmentioning

confidence: 99%

An Investigation of Video Communication Over Bandwidth Limited Public Safety Network

Ahmad¹,

Shan²,

Khan

et al. 2018

MJCS

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“…Existen cuatro tipos de comunicaciones básicas de datos en el sistema TETRA: mensajes de estado, mensajes cortos, datos en modo circuito y datos en modo paquete. El servicios de datos cortos SDS (Short Data Service) permite transmitir y recibir mensajes cortos desde los terminales móviles (radios mayormente) a través de la red TETRA [8], [9].…”

Section: Propuesta De Solución a Fundamento Del Modelounclassified

Modelo de notificación de alarmas para sistemas SCADA a través de tecnologías de comunicaciones móviles

Ojeda¹,

Pozo²

2015

Proceedings of the 13th Latin American and Caribbean Conference for Engineering and Technology Engineering Education Facing The

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Systems Supervisory Control and Data Acquisition become increasingly necessary in industries as it allows remotely monitor and control the process from a computer and through a series of field devices, in addition to storing the data for further analysis. One of the main functions of these systems is the reporting and management of alarms that show abnormal process conditions and require taking actions to correct them. There operational situations, shown through the alarms, which can be caused by faults in the plant, which cannot be resolved remotely and require rapid decisions. This requires a mechanism that allows immediate notification of alarms generated in the Systems Supervisory Control and Data Acquisition responsible for external through mobile communications technologies is proposed.

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“…TETRA devices are designed and produced to work in a spectrum of radio frequencies from 300 through 1000 MHz. In Europe, TETRA frequencies are mainly allocated in the 380 to 430 MHz, keeping lower radio frequency band (380-385 MHz and 390-395 MHz) reserved for emergency and public services and the higher (410-430 MHz) for civil use (Bakaric, Borzic, Bratkovic, Grga, 2005).…”

Section: Tetra Mobile Devicesmentioning

confidence: 99%

“…In this context, Terrestrial Trunked Radio (TETRA) was specifically designed by the European Telecommunications Standards Institute to meet the needs of Professional Mobile Radio (PMR), primarily used in the public safety sector: police departments, emergency services, fire departments, surveillance of marine traffic and others (Bakaric, Borzic, Bratkovic, Grga, 2005).…”

Section: Introductionmentioning

confidence: 99%

Managing Tetra Channel Communications in Android

Corral¹,

Sillitti²,

Succi³

2011

Proceedings of the 13th International Conference on Enterprise Information Systems

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Mobile systems have evolved to a level in which they have to carry out their operations in environments demanding high availability and short response time. An excellent radio transmission protocol is necessary to provide the means to satisfy such requirements. TETRA standard offers a large number of features designed for safety and emergency use; however, to access a TETRA network it is compulsory the use of a standard-specific device. In this paper we explore the conditions that have to be fulfilled to extend Android's capabilities to access TETRA networks from a general-purpose mobile device, and set a path for a future development aimed to accomplish it.

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TETRA (terrestrial trunked radio) - technical features and application of professional communication technologies in mobile digital radio networks for special purpose services

Cited by 6 publications

References 0 publications

An Investigation of Video Communication Over Bandwidth Limited Public Safety Network

An Investigation of Video Communication Over Bandwidth Limited Public Safety Network

Modelo de notificación de alarmas para sistemas SCADA a través de tecnologías de comunicaciones móviles

Managing Tetra Channel Communications in Android

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